Document Type and Number:
Japanese Patent JPS4833634
Kind Code:
A
More Like This:
Application Number:
JP6828071A
Publication Date:
May 11, 1973
Filing Date:
September 04, 1971
Export Citation:
International Classes:
E01C3/06; E01C11/26
Domestic Patent References:
| JPS41779Y1 | 1966-01-26 |